1H-Purine-2,6-dione, 8-[(3R)-3-amino-1-piperidinyl]-1-[[4-[[2-[[8-[(3R)-3-amino-1-piperidinyl]-7-(2-butyn-1-yl)-2,3,6,7-tetrahydro-3-methyl-2,6-dioxo-1H-purin-1-yl]methyl]-1,4-dihydro-4-methyl-4-quinazolinyl]methyl]-2-quinazolinyl]methyl]-7-(2-butyn-1-yl)-3,7-dihydro-3-methyl-
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8-[(3R)-3-Amino-1-piperidinyl]-1-[(4-{[2-({8-[(3R)-3-amino-1-piperidinyl]-7-(2-butyn-1-yl)-3-methyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-1-yl}methyl)-4-methyl-1,4-dihydro-4-quinazolinyl]methyl}-2-quinazolinyl)methyl]-7-(2-butyn-1-yl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione
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Linagliptin Impurity 24
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Linagliptin Dimer Impurity 2
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